carbon-report SKILL.md skillA
carbon-report from gwittebolle/claude-carbon is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add gwittebolle/claude-carbon/carbon-report@git:20261021.f72ac38Pins git:20261021.f72ac38 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- gwittebolle/claude-carbon
- Path
skills/carbon-report/SKILL.md- Versions recorded
- 9
- Latest version
- git:20261021.f72ac38, committed Oct 21, 2026
- First version recorded
- Aug 14, 2026
- Size
- 10,281 bytes
- Repository stars
- 238
- License
- MIT
Display CO2 emissions report for Claude Code sessions.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
Run the following bash script exactly as written and present the output to the user. Do not paraphrase or reformat the results.
```bash
#!/usr/bin/env bash
# Locate the install (equivalence factors + shared locale lib live in the repo),
# mirroring /carbon-card: status line wiring first, then plugin root, then default.
# Windows (Git Bash): CLAUDE_* variables and the paths stored in settings.json can
# arrive in the native "C:\Users\..." spelling, which bash cannot open. cygpath
# ships with Git for Windows; everywhere else this is the identity function.
ccp() {
case "${OSTYPE:-}" in msys*|cygwin*) ;; *) printf '%s' "$1"; return 0 ;; esac
case "$1" in
[A-Za-z]:[\\/]*|*\\*) cygpath -u "$1" 2>/dev/null || printf '%s' "$1" ;;
*) printf '%s' "$1" ;;
esac
}
CFG="$(ccp "${CLAUDE_CONFIG_DIR:-$HOME/.claude}")"
# A jq the installer fetched into the data folder (a Mac older than macOS 15 has none)
if ! command -v jq >/dev/null 2>&1 && [ -x "$CFG/claude-carbon/bin/jq" ]; then PATH="$CFG/claude-carbon/bin:$PATH"; fi
REPO_DIR=""
if command -v jq >/dev/null 2>&1 && [ -f "$CFG/settings.json" ]; then
…Read the whole file at its exact version.
How to install
mdr add gwittebolle/claude-carbon/carbon-report@sha256:bbfe05f90aab5be8The line at the top of this page pins the label git:20261021.f72ac38, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_c6c2shz7gcbowbmd)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 9 versions of this file, between Aug 14, 2026 and Oct 21, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261021.f72ac38 latest | 2026-10-21 | f72ac38 | 10,281 B | A | view · diff |
| git:20261014.e67ecde | 2026-10-14 | e67ecde | 10,188 B | A | view · diff |
| git:20261012.fb5a3d0 | 2026-10-12 | fb5a3d0 | 9,982 B | A | view · diff |
| git:20261012.af59286 | 2026-10-12 | af59286 | 9,885 B | A | view · diff |
| git:20260902.8b0a84f | 2026-09-02 | 8b0a84f | 7,538 B | A | view · diff |
| git:20260819.47f21ec | 2026-08-19 | 47f21ec | 7,019 B | A | view · diff |
| git:20260818.3774557 | 2026-08-18 | 3774557 | 6,034 B | A | view · diff |
| git:20260814.351acb4 | 2026-08-14 | 351acb4 | 5,858 B | A | view · diff |
| git:20260814.4991b84 | 2026-08-14 | 4991b84 | 4,431 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10281 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
gwittebolle/claude-carbon · 238 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_c6c2shz7gcbowbmd GET https://markdownregistry.com/api/v1/resolve?ref=gwittebolle/claude-carbon/carbon-report GET https://markdownregistry.com/api/v1/blob/bbfe05f90aab5be8148a8fa43d3989bbd184a1514f51c94ddb1381e7fad29a50
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.